clamd_selinux

NAME

DESCRIPTION

BOOLEANS

SELinux policy is customizable based on least access required. clamd policy is extremely flexible and has several booleans that allow you to manipulate the policy and run clamd with the tightest access possible.

If you want to allow clamd to use JIT compile, you must turn on the clamd_use_jit boolean.

setsebool -P clamd_use_jit 1

FILE CONTEXTS

SELinux requires files to have an extended attribute to define the file type.

You can see the context of a file using the -Z option to lsP
Policy governs the access confined processes have to these files.
SELinux clamd policy is very flexible allowing users to setup their clamd processes in as secure a method as possible.

The following file types are defined for clamd:

clamd_etc_t

- Set files with the clamd_etc_t type, if you want to store clamd files in the /etc directories.

clamd_exec_t

- Set files with the clamd_exec_t type, if you want to transition an executable to the clamd_t domain.

Paths:

/usr/sbin/clamd, /usr/sbin/clamav-milter

clamd_initrc_exec_t

- Set files with the clamd_initrc_exec_t type, if you want to transition an executable to the clamd_initrc_t domain.

clamd_tmp_t

- Set files with the clamd_tmp_t type, if you want to store clamd temporary files in the /tmp directories.

clamd_var_lib_t

- Set files with the clamd_var_lib_t type, if you want to store the clamd files under the /var/lib directory.

Paths:

/var/lib/clamd.*, /var/clamav(/.*)?, /var/lib/clamav(/.*)?

clamd_var_log_t

- Set files with the clamd_var_log_t type, if you want to treat the data as clamd var log data, usually stored under the /var/log directory.

Paths:

/var/log/clamav.*, /var/log/clamd.*

clamd_var_run_t

- Set files with the clamd_var_run_t type, if you want to store the clamd files under the /run directory.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the
semanage fcontext
command. This will modify the SELinux labeling database. You will need to use
restorecon
to apply the labels.

PORT TYPES

SELinux defines port types to represent TCP and UDP ports.

You can see the types associated with a port by using the following command:

semanage port -l

Policy governs the access confined processes have to these ports.
SELinux clamd policy is very flexible allowing users to setup their clamd processes in as secure a method as possible.

The following port types are defined for clamd:

clamd_port_t

Default Defined Ports:
tcp 8021

PROCESS TYPES

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to psP
Policy governs the access confined processes have to files.
SELinux clamd policy is very flexible allowing users to setup their clamd processes in as secure a method as possible.

The following process types are defined for clamd:

clamd_t, clamscan_t

Note:
semanage permissive -a PROCESS_TYPE
can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.

COMMANDS

semanage fcontext
can also be used to manipulate default file context mappings.

semanage permissive
can also be used to manipulate whether or not a process type is permissive.

semanage module
can also be used to enable/disable/install/remove policy modules.

semanage port
can also be used to manipulate the port definitions

semanage boolean
can also be used to manipulate the booleans

system-config-selinux
is a GUI tool available to customize SELinux policy settings.